Original Articles
Copyright ©The Author(s) 1999. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Aug 15, 1999; 5(4): 327-329
Published online Aug 15, 1999. doi: 10.3748/wjg.v5.i4.327
Intestinal flora translocation and overgrowth in upper gastrointestinal tract induced by hepatic failure
Jian-Hua Yi, Ruo-Yu Ni, Duan-De Luo, Shu-Li Li
Jian-Hua Yi, Ruo-Yu Ni, Duan-De Luo, Shu-Li Li, Department of Infectious Diseases, Union Hospital, Tongji Medical University, Wuhan 430022, Hubei Province, China
Author contributions: All authors contributed equally to the work.
Supported by the National Natural Science Foundation of China, No. 39370651
Correspondence to: Dr. Ruo-Yu Ni, Department of Infectious Diseases, Union Hospital, Tongji Medical University, 1277 Jiefang Avenue, Wuhan 430022, Hubei Province, China
Telephone: +86-27-85726132
Received: February 5, 1999
Revised: July 3, 1999
Accepted: July 19, 1999
Published online: August 15, 1999
Abstract

AIM: To explore the relationship between endoinfection caused by intestinal flora translocation and multiple organ dysfunction in hepatic failure.

METHODS: By using the quantitative bacteria culture, bacteria colony was counted in GI tract, bile duct and mesenteric lymphonodus in rat hepatic failure model.

RESULTS: Intestinal flora migrated up to the upper GI tract and overgrew in stomach and jejunum in rats with hepatic failure. The number of bacteria colonies in the specimens of stomach, jejunum and ileum were 4.7 × 104/m L, 2.1 × 105/mL, 5.5 × 106/mL in experiment group and 4.6 × 102/mL, 6.1 × 101/mL, 2.4 × 103/mL in control group respectively (P < 0.05). Bacteria in bile duct and mesenteric lymphonodus of hepatic failure rats were also cultured. Extensive damages of gastrointestinal mucosa caused by bacterial overgrowth were observed.

CONCLUSION: Intestinal flora translocation and overgrowth in stomach and jejunum formed an endoinfectious source and caused obvious pathologic al injury of gastrointestinal mucosa, which play a very important role in developing abdominal distension, toxic intestinal expansion, alimentary tract haemorrh age and endotoxemia in patients with hepatic failure.

Keywords: hepatic failure; multiple organ dysfunction; bacterial overgrowth; bacterial translocation; intestinal flora